New York is currently 13 hours behind Seoul. Convert time between New York and Seoul, see the exact difference, and find the best hours for calls and meetings.
New York uses Eastern Daylight Time. Seoul uses Korean Standard Time. New York time is 13 hours behind Seoul. So, when it is 12:00 AM in New York, it is 1:00 PM in Seoul.
Common New York times and their Seoul equivalents.
| New York Time | Seoul Time |
|---|---|
| 12:00 AM New York | 1:00 PM Seoul |
| 1:00 AM New York | 2:00 PM Seoul |
| 2:00 AM New York | 3:00 PM Seoul |
| 3:00 AM New York | 4:00 PM Seoul |
| 4:00 AM New York | 5:00 PM Seoul |
| 5:00 AM New York | 6:00 PM Seoul |
| 6:00 AM New York | 7:00 PM Seoul |
| 7:00 AM New York | 8:00 PM Seoul |
| 8:00 AM New York | 9:00 PM Seoul |
| 9:00 AM New York | 10:00 PM Seoul |
| 10:00 AM New York | 11:00 PM Seoul |
| 11:00 AM New York | 12:00 AM Seoul |
| 12:00 PM New York | 1:00 AM Seoul |
| 1:00 PM New York | 2:00 AM Seoul |
| 2:00 PM New York | 3:00 AM Seoul |
| 3:00 PM New York | 4:00 AM Seoul |
| 4:00 PM New York | 5:00 AM Seoul |
| 5:00 PM New York | 6:00 AM Seoul |
| 6:00 PM New York | 7:00 AM Seoul |
| 7:00 PM New York | 8:00 AM Seoul |
| 8:00 PM New York | 9:00 AM Seoul |
| 9:00 PM New York | 10:00 AM Seoul |
| 10:00 PM New York | 11:00 AM Seoul |
| 11:00 PM New York | 12:00 PM Seoul |
New York City operates on Eastern Time — Eastern Standard Time (EST, UTC−5) in winter and Eastern Daylight Time (EDT, UTC−4) in summer. US clocks spring forward on the second Sunday of March and fall back on the first Sunday of November. NYSE and NASDAQ market hours (9:30 AM–4:00 PM ET) make Eastern Time one of the most referenced zones in global finance.
Seoul uses Korea Standard Time (KST, UTC+9) year-round, identical to Tokyo in offset. South Korea does not observe Daylight Saving Time. The consistent UTC+9 offset means Seoul–Tokyo scheduling has zero drift throughout the year.
Both New York and Seoul may observe Daylight Saving Time, which means the offset between them can change twice a year. Here is what to expect each season.
| Period | Note | New York | Seoul | Offset |
|---|---|---|---|---|
| Nov – Mar | Both on standard time | EST (UTC−5) | GMT+9 (UTC+9) | 14 hours |
| Mar – late Mar | US clocks forward, some zones still on standard | EDT (UTC−4) | GMT+9 (UTC+9) | 13 hours |
| Late Mar – Oct current | Both on summer / daylight time | EDT (UTC−4) | GMT+9 (UTC+9) | 13 hours |
| Late Oct – early Nov | Clocks transitioning — check exact date | EST (UTC−5) | GMT+9 (UTC+9) | 14 hours |
The transition window typically lasts 1–2 weeks in spring and autumn. If you have a recurring weekly meeting near a clock change, verify the exact date to avoid a missed call.
New York is currently 13 hours behind Seoul. New York uses Eastern Daylight Time (UTC−4) and Seoul uses Korean Standard Time (UTC+9).
New York and Seoul have no standard 9 am–6 pm business-hour overlap. Consider scheduling during early morning or late evening, or use a rotating schedule to share the inconvenience.
When it is 9:00 AM in New York, it is 10:00 pm in Seoul. New York is 13 hours behind Seoul.
When it is 5:00 PM in Seoul, it is 4:00 am in New York.
New York observes Daylight Saving Time but Seoul does not. This means the offset between the two cities changes by one hour when New York transitions its clocks — typically in late March (spring forward) and late October (fall back). Always verify the current offset when scheduling around those dates.